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// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
struct S {
o: Option<String>
}
// Make sure we don't reuse the same alloca when matching
// on field of struct or tuple which we reassign in the match body.
fn main() {
let mut a = (0, Some("right".to_string()));
let b = match a.1 {
Some(v) => {
a.1 = Some("wrong".to_string());
v
}
None => String::new()
};
println!("{}", b);
assert_eq!(b, "right");
let mut s = S{ o: Some("right".to_string()) };
let b = match s.o {
Some(v) => {
s.o = Some("wrong".to_string());
v
}
None => String::new(),
};
println!("{}", b);
assert_eq!(b, "right");
}
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